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lll. Receiving Instructions 

Upon receipt, inspect the batteries for physical damage to the containers and terminals. If found, a claim 
must be filed with the carrier within 10 days. Also check the packing slip to make sure all material has 
arrived. The batteries are shipped fully charged. Their Open Circuit Voltage (OCV) should not be below 
12.48 volts per 12 volt unit. 
 

lV. Storage Instructions 

Store batteries in a clean, dry, cool area away from radiant heat sources. Recharge batteries in storage 
every 6 months or before their OCV declines to 12.48 VDC.  Follow instructions as outlined in section VI 
Freshening Charge. 

 

V. Installation Instructions-Required Installation Tools & Room

 

Equipment

 

At a minimum, the following tools and equipment are required to install VRLA batteries. A digital 
voltmeter, insulated 7/16” socket wrench, inch pound torque wrench (110 in. lb.), rubber gloves, safety 
glasses for normal maintenance, full face shield for load testing, optional plastic apron, potable eyewash, 
spill kit and fire extinguisher (Class C). 
 
Optional test equipment, depending on the type of checkout to be performed includes; micro-ohm meter, 
ohmic test set, 100 amp momentary load test set or system load bank. 

 

Typically for Telecom applications, four individual batteries are connected in series to form a higher 
voltage string of batteries (e.g. 4 each 12 volt batteries connected in series form a 48VDC battery 
system). Refer to Figure 1 for a 48 VDC series connected battery string using 12 volt front access 
batteries.  
 
Two or more strings may be connected in parallel to increase the total capacity of the 
system (e.g. two strings of 48 volt 75 ampere-hour batteries connected in parallel make a 48 volts  
150 Amp hour battery. Refer to Figure 2 for parallel connected front access batteries.  
 

   

Warranty Date Code  

C&D’s front access batteries date code is located on the front panel of the battery as a four digit 
number, MMYY (e.g., 1107 means November 2007). 

 

   

Series -48VDC connection of individual front access batteries  

 

Front access batteries are heavy, typically over 100 pounds each. Make sure the proper lifting and 
moving arrangements to safely handle this weight have been considered before traveling to the site. 
 

Note: Disconnect the battery string(s) (A or B) being installed from the DC source by turning 
the circuit breaker off, if so equipped as noted in Figure 1.  

 
Step 1.  Beginning with the lowest shelf, string A, place each the individual front access batteries on 
the shelf (4 per shelf) with approximately 1/2 inch spacing between the individual units. All the 
batteries should be placed with terminals to the front of the rack / shelf. Remove and save terminal 
protectors (see Figures 2 & 3). 
 
Step 2.  C&D recommends, prior to connection of inter-unit bus bars and/or cables, the battery 
terminals and all contact surfaces should be cleaned, lightly brushed with a brass bristle brush or 
scotch brite type pad and lightly coated with protective No-Ox-Id terminal grease. 

 

Step 3a.  Starting at the battery on the right, which is to be the positive (+) output, label it as number 1 
and then label the adjacent batteries (right to left) in ascending numerical order 2, 3 & 4  (see Figures 1 , 
2 & 3). 
 

Содержание TEL12-105FS

Страница 1: ...r additional information www cdtechno com Technical Warranty Assistance contact C D Technologies Inc 1400 Union Meeting Road PO Box 3053 Blue Bell PA 19422 0858 800 543 8630 or 215 619 2700 Fax 215 61...

Страница 2: ...a risk of electrical shock and high short circuit current Remove any metal objects e g watches and rings use properly insulated tools wear eye protection and rubber gloves Observe circuit polarities u...

Страница 3: ...12 volt front access batteries Two or more strings may be connected in parallel to increase the total capacity of the system e g two strings of 48 volt 75 ampere hour batteries connected in parallel...

Страница 4: ...cifications in Table 1 except the remaining negative power supply cable Step 10 Carefully remove the earlier applied insulation from the power supply negative cable lug Do not let the power supply neg...

Страница 5: ...d hardware bolt and washer connect between battery 1A s negative terminal to battery 2A s positive terminal Tighten bolt washer assembly hand tight Step 7 DO NOT connect the power supply positive cabl...

Страница 6: ...necessary the battery system should be placed on float charge at between 2 25 v c and 2 30 v c average approximately 13 5 to 13 8 volts unit average for 12 volt units at 77 F Vlll Periodic Maintenanc...

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